Holding device and metering device

Abstract

The utility model relates to a retaining device and metering equipment. The holding device is used for holding a wire on a support and spacing the wire from the support. The holding device includes: a mounting portion configured to be mounted to the support; the accommodating part is configured to form an accommodating space through which the wire passes; and the connecting part is connected between the mounting part and the accommodating part, so that the accommodating space is separated from the mounting part. According to the technical scheme of the utility model, the problems that the lead is ineffective in fixation and the temperature of the lead rises and even melts are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metering equipment, in particular to a holding device and a metering equipment. Background Art

[0002] This section provides background information related to the present invention which does not necessarily constitute prior art.

[0003] Various metering devices are widely used in industrial production. For example, a flow meter can be used to measure a fluid flowing through a pipeline. When using a flow meter to measure the fluid in a pipeline, it is usually necessary to measure the temperature of the fluid to compensate for the measured value so that the final measured value is more accurate. The flow meter usually includes a housing, a fluid pipeline arranged in the housing, and a support member arranged below the fluid pipeline for supporting the fluid pipeline. In order to measure the temperature of the fluid in the fluid pipeline, a temperature sensor is usually arranged on the fluid pipeline. It is known that the wire of the temperature sensor is fixed to the support member by tape or glue. In this case, the wire is usually attached to the surface of the support member. In addition, the housing of the flow meter usually needs to be welded to the support member to enclose the fluid pipeline located above the support member, the temperature sensor arranged on the outer wall of the fluid pipeline and other components.

[0004] Such a known flow meter generates a large amount of heat when welding the housing and the support. On the one hand, this heat will destroy the adhesive tape or glue used to fix the wire of the temperature sensor on the support, thereby causing the wire to fail to be fixed. On the other hand, this heat will also increase the temperature of the wire of the temperature sensor attached to the support or even melt it, affecting the temperature measurement. Utility Model Content

[0005] The purpose of the utility model is to solve one or more of the above-mentioned technical problems.

[0006] In particular, the purpose of the present invention is to provide a retaining device that replaces the use of tape or glue to fix the wire, so as to avoid the problems of wire fixation failure and temperature increase or even melting of the wire itself.

[0007] In a first aspect, the utility model provides a holding device for holding a wire on a support and spacing the wire from the support, the holding device comprising: a mounting portion, the mounting portion being configured to be mounted to the support; a receiving portion, the receiving portion being configured to form a receiving space for the wire to pass through; and a connecting portion, the connecting portion being connected between the mounting portion and the receiving portion so that the receiving space is spaced apart from the mounting portion.

[0008] According to the technical solution of the utility model, the wire of the sensor is held by a holding device. On the one hand, there is no need to use tape or glue to fix the wire to the support, thus avoiding the problem of heat destroying the viscosity of the tape or glue and causing failure of wire fixation; on the other hand, since the accommodating space for the wire to pass through formed by the accommodating portion of the holding device is separated from the mounting portion for mounting to the support by the connecting portion, the problem of the wire itself being attached to the outer surface of the support and causing the temperature of the wire itself to rise or even melt is avoided.

[0009] Optionally, the holding device further comprises a heat insulating component, which is arranged in the accommodation space and is configured to allow the wire to pass through. The heat insulating component arranged in the accommodation space formed by the accommodation portion can further insulate the wire to prevent the temperature of the wire itself from rising or even melting.

[0010] Optionally, the circumferential outer surface of the heat insulating component is at least partially spaced apart from the circumferential inner surface of the receiving portion to form an air barrier between the heat insulating component and the receiving portion. The air barrier formed between the circumferential outer surface of the heat insulating component and the circumferential inner surface of the receiving portion can further improve the heat insulation effect.

[0011] Optionally, the heat insulating component is a component separated from the accommodating portion. In this way, it is easy to manufacture the heat insulating component.

[0012] Optionally, the mounting portion, the connecting portion and the receiving portion are integrated. In this way, the manufacturing process can be simplified and the number of connecting steps can be reduced.

[0013] Optionally, the mounting portion, the connecting portion and the accommodating portion together form a component having an “Ω”-shaped cross section.

[0014] In another aspect of the utility model, a metering device is provided. The metering device comprises: a sensor, the sensor comprises a wire; a support member; and any one of the above-mentioned retaining devices, the mounting portion is mounted to the support member, and the wire passes through the accommodating space. In the metering device, the wire of the sensor is retained by the above-mentioned retaining device, so the above-mentioned corresponding technical effects can be achieved. For the sake of brevity, no further description is given here.

[0015] Optionally, the metering device comprises a plurality of the holding devices, the plurality of the holding devices are arranged at intervals, and the wire passes through the accommodating space of each of the holding devices. In this way, the number of the holding devices can be flexibly selected according to actual needs.

[0016] Optionally, the metering device is one of a flow meter, a density meter, and a viscometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features and characteristics of the present invention will become more apparent from the following detailed description with reference to the accompanying drawings, which are only provided as examples and are not necessarily drawn to scale. The same reference numerals are used in the accompanying drawings to indicate the same components, in which:

[0018] Figure 1 A perspective schematic diagram showing a portion of a Coriolis flow meter according to an embodiment of the present invention is shown, wherein a housing of the Coriolis flow meter is removed and only a fluid conduit, a support member, and a holding device mounted to the support member for holding a wire are shown;

[0019] Figure 2 A perspective schematic diagram showing a portion of a Coriolis flowmeter according to an embodiment of the present invention is shown, wherein a portion of the Coriolis flowmeter is cut away in order to clearly show a retaining device and a cross-sectional structure thereof;

[0020] Figure 3 A schematic top view of a Coriolis flow meter according to an embodiment of the present invention is shown, wherein a housing of the Coriolis flow meter is removed to show the internal structure of the Coriolis flow meter; and

[0021] Figure 4 A schematic front view of a portion of a Coriolis flow meter according to an embodiment of the present invention is shown, wherein a holding device for holding a wire is installed on a support. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will now be described in detail in conjunction with the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present invention and its application or use.

[0023] The utility model provides a holding device for holding a wire and a metering device including the holding device. The metering device may be a flow meter, such as a Coriolis flow meter. The metering device may also be any other suitable metering device, such as a density meter, a viscometer, etc. The wire may be a wire of a sensor used in the metering device or other devices. For example, the wire may be a wire of a temperature sensor used in the flow meter, in particular a resistance temperature sensor (RTD).

[0024] The following will be combined with the attached drawings Figures 1 to 4 The present invention is described in detail by taking the use of the holding device 200 provided by the present invention in the Coriolis flow meter 100 to hold the wire 141 of the resistance temperature sensor 140 as an example.

[0025] Figure 1 and Figure 2Schematic perspective views of a portion of a Coriolis flowmeter 100 according to an embodiment of the present invention are respectively shown. Figure 3 A schematic top view of a Coriolis flow meter 100 according to an embodiment of the present invention is shown. Figure 4 A schematic front view of a portion of a Coriolis flow meter 100 according to an embodiment of the present invention is shown.

[0026] like Figure 1 and Figure 2 As shown, the Coriolis flowmeter 100 mainly includes a housing 110, a fluid pipeline 120 arranged in the housing 110, and a support member 130 for supporting the fluid pipeline 120. The housing 110 can be made of a rigid material such as a metal material to protect the internal components of the Coriolis flowmeter 100. The fluid pipeline 120 generally includes two fluid pipelines arranged side by side and roughly in an "Ω" shape or an inverted "U" shape, namely a first fluid pipeline 121 and a second fluid pipeline 122. Both ends of the first fluid pipeline 121 and the second fluid pipeline 122 are provided with a common support sheet 123 and are connected to a common manifold. The support member 130 is arranged below the fluid pipeline 120. The support member 130 can be made of a rigid material such as a metal material to provide sufficient rigidity to support the fluid pipeline 120. The support member 130 has a generally cylindrical structure. The housing 110 is welded to the support member 130 to enclose internal components such as the fluid pipeline 120 located above the support member 130. Specifically, in one embodiment of the utility model, as Figure 2 As shown, the housing 110 is welded to the support member 130 at the side of the support member 130 .

[0027] like Figure 3 As shown, in order to measure the temperature of the fluid in the fluid pipeline 120, a resistive temperature sensor 140 is provided on the fluid pipeline 120, specifically, on the outer wall of the fluid pipeline 120. Specifically, in one embodiment of the present invention, the resistive temperature sensor 140 is installed between the support sheet 123 and the manifold. The wire 141 of the resistive temperature sensor 140 is retained by a retaining device 200 provided by the present invention. The retaining device 200 is used to retain the wire 141 of the resistive temperature sensor 140 on the support 130 and to space the wire 141 from the support 130, thereby preventing the wire 141 from being attached to the outer surface of the support 130.

[0028] The following will be combined Figure 1 , Figure 2 and Figure 4 The holding device 200 according to one embodiment of the present invention is described in detail.

[0029] like Figure 1 and Figure 2 As shown, the holding device 200 includes a mounting portion 210, a receiving portion 220 and a connecting portion 230. The mounting portion 210 is configured to be mounted to a support. Specifically, in one embodiment of the utility model, the support is a support 130 of the Coriolis flowmeter 100 for supporting the fluid pipeline 120. It can be understood that when the holding device 200 is used for other metering equipment, the support can be any suitable component in the metering equipment suitable for mounting the holding device 200. Preferably, the support can be an existing component in the metering equipment to avoid increasing the cost by adding additional components. The mounting portion 210 can have a shape that matches the outer surface of the support 130 to which it will be mounted. For example, in one embodiment of the utility model, the mounting portion 210 will be mounted to a substantially cylindrical support 130, and therefore, the mounting portion 210 has an arc-shaped lower surface to match the shape of the outer surface of the support 130. The mounting portion 210 can be welded to the support 130, or it can be detachably mounted to the support 130 by means of threaded fasteners or the like. The mounting portion 130 may be formed as a mounting flange to facilitate mounting to the support member 130 .

[0030] like Figure 2 As shown, the receiving portion 220 of the holding device 200 is configured to form a receiving space for the wire 141 to be held to pass through. The receiving portion 220 can be a hollow cylinder, wherein the hollow cross section can be a circle or any suitable shape. The connecting portion 230 of the holding device 200 is connected between the mounting portion 210 and the receiving portion 220, so that the receiving space formed by the receiving portion 220 is spaced apart from the mounting portion 210. The size of the connecting portion 230 in a direction perpendicular to the mounting portion 210 can be any suitable size, so that the receiving space formed by the receiving portion 220 is spaced apart from the mounting portion 210 by a predetermined distance. For example, the size of the connecting portion 230 in a direction perpendicular to the mounting portion 210 can be about 5 mm to 10 mm, which can not only space the mounting portion 210 and the receiving space formed by the receiving portion 220, but also meet the requirements of the Coriolis flowmeter 100 for compactness.

[0031] When the retaining device 200 is mounted to the support 130 through the mounting portion 210, the accommodation space formed by the accommodation portion 220 for the wire 141 to pass through and the wire 141 passing through the accommodation space can be spaced a certain distance from the support 130, thereby avoiding the wire 141 from being directly attached to the outer surface of the support 130, thereby avoiding the problem of the heat generated during the welding process of the shell 110 to the support 130 causing the temperature of the wire 141 itself to rise or even melt. In addition, by retaining the wire 141 through the retaining device 200, it is not necessary to use tape or glue to fix the wire 141 on the support 130, thereby avoiding the problem of the heat generated during the welding process of the shell 110 to the support 130 destroying the viscosity of the tape or glue and causing the wire 141 to fail to fix.

[0032] Preferably, if Figure 2 As shown, the mounting portion 210, the receiving portion 220 and the connecting portion 230 of the holding device 200 are integrated to simplify the manufacturing process and reduce the number of connecting steps. For example, the mounting portion 210, the receiving portion 220 and the connecting portion 230 can form a component with an "Ω"-shaped cross section.

[0033] Preferably, if Figure 2 As shown, the retaining device 200 may further include a heat insulating component 240. The heat insulating component 240 may be made of a heat insulating material. The heat insulating component 240 is disposed in the accommodation space formed by the accommodation portion 220 and is configured to allow the wire 141 to pass through. When the retaining device 200 retains the wire 141, the heat insulating component 240 is located between the outer surface of the wire 141 and the inner surface of the accommodation portion 220. The heat insulating component 240 may provide a further heat insulating effect for the wire 141. The heat insulating material may be glass fiber or any other suitable material.

[0034] like Figure 2 As shown, the heat insulating component 240 can be a component separated from the receiving portion 220 to facilitate manufacturing. For example, the heat insulating component 240 can be a heat insulating sleeve separated from the receiving portion 220. The heat insulating sleeve can be configured to be inserted into the receiving space of the receiving portion 220 and to make the circumferential outer surface of the heat insulating sleeve contact the circumferential inner surface of the receiving portion 220. The wire 141 of the resistive temperature sensor 140 passes through the through hole in the heat insulating sleeve and thus also passes through the receiving space formed by the receiving portion 220. The heat insulating sleeve can also be configured to be sleeved on the wire 141 of the resistive temperature sensor 140 and supported by the wire 141 of the resistive temperature sensor 140. In this way, the outer diameter of the heat insulating sleeve can be smaller than the inner diameter of the receiving portion 220, so that the circumferential outer surface of the heat insulating sleeve and the circumferential inner surface of the receiving portion 220 can be spaced apart to form an air barrier 250 between the heat insulating sleeve and the receiving portion 220. The air barrier 250 can further improve the thermal insulation effect.

[0035] In addition, the heat insulating component 240 is also integrated with the receiving portion. For example, a connector (not shown) spaced apart in the circumferential direction may be provided between the circumferential outer surface of the heat insulating component 240 and the circumferential inner surface of the receiving portion 220 to form an air barrier 250 between the heat insulating component 240 and the receiving portion 220. Alternatively, the heat insulating component 240 and the receiving portion 220 are connected together at their axial ends, and the air barrier 250 is formed between the two axial ends. By arranging the connectors connecting the heat insulating component 240 and the receiving portion 220 at intervals in the circumferential direction or connecting the heat insulating component 240 and the receiving portion 220 at the two axial ends, the heat insulating component 240 and the receiving portion 220 can be made into an integral component, which is convenient for storage, and there is no need for the wire 141 to support the heat insulating component 240.

[0036] In addition, the heat insulating member 240 may also be formed by directly filling the accommodation space of the accommodation portion 220 with a heat insulating material.

[0037] It should be noted that the “axial direction” of the accommodating portion 220 and the thermal insulation component 240 referred to herein means: when the wire 141 passes through the accommodating space formed by the accommodating portion 220 and the thermal insulation component 240, it means the direction parallel to the wire 141; correspondingly, the “circumferential direction” of the accommodating portion 220 and the thermal insulation component 240 referred to herein means: when the wire 141 passes through the accommodating space formed by the accommodating portion 220 and the thermal insulation component 240, it means the direction surrounding the wire 141.

[0038] In actual use, a plurality of holding devices 200 may be arranged at intervals according to the length of the wire 141 and the wire 141 may be held by passing the wire 141 through the accommodation space of each holding device 200 and the heat insulating component 240 .

[0039] In summary, according to the technical solution of the present invention, the wire 141 of the sensor (e.g., the resistive temperature sensor 140) is held by the holding device 200. On the one hand, there is no need to use tape or glue to fix the wire 141 on the support (e.g., the support 130 of the Coriolis flowmeter 100), thereby avoiding the problem that the heat generated during the welding of the housing 110 of the Coriolis flowmeter 100 to the support 130 destroys the adhesiveness of the tape or glue and causes the wire fixation to fail; on the other hand, since the accommodation space formed by the accommodation portion 220 of the holding device 200 for the wire 141 to pass through is separated from the mounting portion 210 for mounting to the support 130 by the connecting portion 230, the problem that the wire 141 is attached to the outer surface of the support 130 and causes the temperature of the wire itself to rise or even melt is avoided. In addition, in a preferred embodiment of the present invention, the heat insulating component 240 provided in the accommodation space formed by the accommodation portion 220 can further insulate the wire 141 and avoid the temperature of the wire 141 itself from rising or even melting. In a further preferred embodiment of the present invention, an air barrier 250 is formed between the circumferential outer surface of the heat insulating component 240 and the circumferential inner surface of the accommodating portion 220, which can further improve the heat insulating effect.

[0040] It should be understood that various different embodiments can be further designed by combining or modifying different embodiments and various technical features in different ways.

[0041] The above describes the retaining device and metering device according to the preferred embodiment of the utility model in combination with the specific embodiment. It can be understood that the above description is only exemplary and not restrictive. Without departing from the scope of the utility model, those skilled in the art can think of various variations and modifications with reference to the above description. These variations and modifications are also included in the protection scope of the utility model.

Claims

1. A holding device, characterized in that: The holding device is used to hold the wire on the support and to space the wire from the support, and the holding device includes: a mounting portion configured to be mounted to the support member; an accommodating portion configured to form an accommodating space for the wire to pass through; and A connecting portion is connected between the mounting portion and the receiving portion so that the receiving space is spaced apart from the mounting portion.

2. The holding device according to claim 1, characterized in that The holding device further includes a heat insulating component, which is disposed in the accommodation space and is configured to allow the wire to pass therethrough.

3. The holding device according to claim 2, characterized in that: A circumferential outer surface of the heat insulating member is at least partially spaced apart from a circumferential inner surface of the receiving portion to form an air barrier between the heat insulating member and the receiving portion.

4. The holding device according to claim 2, characterized in that: The heat insulating component is a component separated from the accommodating portion.

5. The holding device according to claim 1, characterized in that: The mounting portion, the connecting portion and the accommodating portion are integrated.

6. The holding device according to claim 5, characterized in that The mounting portion, the connecting portion and the accommodating portion together form a component having an Ω-shaped cross section.

7. A measuring device, characterized in that: The metering equipment includes: a sensor, the sensor comprising a wire; Support members; and According to any one of claims 1 to 6, the mounting portion is mounted to the support member, and the wire passes through the accommodating space.

8. The metering device according to claim 7, characterized in that The metering device comprises a plurality of the holding devices, the plurality of the holding devices are arranged at intervals, and the wire passes through the accommodating space of each of the holding devices.

9. The metering device according to claim 7 or 8, characterized in that The metering device is one of a flow meter, a density meter, and a viscometer.

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